1. What percentage of numbers from 1 to 70 have 1 or 9 in the unit’s digit?
1. 2023%
2. 20%
3. 21%
4. 2223%
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Answer:- 2
Explanation :-
Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69.
Number of such number =14
percentage of numbers =(14/70)*100
=>20%
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2. In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, what was the number of valid votes that the other candidate got?
1. 2800
2. 2700
3. 2100
4. 2500
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Answer:- 2
Explanation :-
Total votes = 7500
Valid votes = 80%
Total valid votes =7500*80/100
Vote for First Candidate=55% of valid votes
Vote for Second Candidate=45% of valid votes
=>(45/100)(80/100)*7500
=>2700 votes
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3. In a competitive examination in State A, 6% candidates got selected from the total appeared candidates. State B had an equal number of candidates appeared and 7% candidates got selected with 80 more candidates got selected than A. What was the number of candidates appeared from each State?
1. 8200
2. 7500
3. 7000
4. 8000
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Answer:- 4
Explanation :-
In state A , Selected students =6% of total appeared candidates
In state B, Selected students = 7% of total appeared candidates
Differece between selected students of A & B=80
Therefore 1% of total appeared candidates=80
Total appeared candidates in A=Total appeared candidates in B= 80*100=8000
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4. What percent of a day is 6 hours?
1. 6.25%
2. 20%
3. 25%
4. 12.5%
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Answer:- 3
Total hours in day=24
Required %age=(6/24)*100
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5. A student has to obtain 33% of the total marks to pass. He got 125 marks and failed by 40 marks. The maximum marks are
1. 600
2. 500
3. 400
4. 300
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Answer:- 2
Explanation :-
Student got 125 marks
failed by 40 marks
Minimum Passing marks required = 125 + 40 = 165
Therefore 33% of total marks=165
total marks =(165*100)/33
Total marks=500
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